According to UKBA, The procedure for sponsoring students under Tier 4 of the points-based system will change next month, when phase 4 of Tier 4 begins.

From 22 February 2010, any student who applies by post or at one of our public enquiry offices, to study in the UK under Tier 4 of the points-based system must possess a confirmation of acceptance for studies (CAS) from their prospective sponsor.

You will not be able to apply under Tier 4 using a visa letter from that date, even if the visa letter was issued before 22 February 2010.

Until 21 February 2010, you can continue to apply under Tier 4 using a visa letter, even if your course of study will start after 22 February 2010.

For more information about applying to study under Tier 4 of the points-based system, please visit http://www.bia.homeoffice.gov.uk/.